Tohnichi RTD500CN: Precision Adjustable Torque Screwdriver (100~500 cNm) Review

As an experienced mechanic, I strongly recommend this adjustable screwdriver for anyone working in the automotive industry. As my tests showed, it's accurate and precise, making it an excellent tool for any diagnostic project. I appreciate its versatility, as it can be adjusted from 100 to 500 Newton-meters, allowing me to use it for a range of projects. The only downside is that it's a bit pricey, but you get what you pay for when it comes to high-quality diagnostic tools. Overall, I'm very…

An excellent high quality tool, both in terms of design and use. Typically Japanese incredible attention to detail. When the tool reaches the set torque, it switches to a forced clutch, making it impossible to exceed the set torque limit, making it totally reliable for inexperienced and heavy hands!

When adjusting the focus flatness of a photographic lens, even tightening of the screws around the optical assemblies is of paramount importance. Especially for macro lenses where uneven tightening will tilt/distort the focal plane even if you have the correct number of shims under the element. This saves time that is never enough.